光催化预处理对秸秆暗发酵产氢性能的影响研究  

Effect of photocatalytic pretreatment on dark fermentative hydrogen production from straw

作　　者：张靖楠 钱思桐 昌行行 高馨蕊 马浩锟 徐清萍 张志平 宋丽丽 杨旭 魏涛 ZHANG Jingnan;QIAN Sitong;CHANG Hanghang;GAO Xinrui;MA Haokun;XU Qingping;ZHANG Zhiping;SONG Lili;YANG Xu;WEI Tao(College of Food and Bioengineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China)

机构地区：[1]郑州轻工业大学食品与生物工程学院,河南郑州450002

出　　处：《食品与发酵工业》2023年第15期100-106,共7页Food and Fermentation Industries

基　　金：国家自然科学基金项目(21706244);河南省科技攻关项目(182102210162,212102310077,212102110310)。

摘　　要：制备了TiO_(2)/生物炭复合催化剂对玉米秸秆进行光催化预处理,利用扫描电镜、傅里叶红外变换光谱仪、X射线衍射和X射线光电子能谱仪对催化剂进行表征,重点研究了光催化条件对预处理秸秆暗发酵产氢性能的影响。响应面优化试验结果显示,在生物炭掺杂比例10%,催化剂质量浓度1.3 g/L,催化pH为6的催化条件下,秸秆的最大累积产氢量达到52.9 mL/g,比对照组提高了16.6%。对结构的表征结果显示,光催化能够对秸秆结构产生破坏,有利于后续的发酵产氢。A TiO_(2)/biochar composite catalyst was prepared for photocatalytic pretreatment of corn straw,using scanning electron microscopy(SEM),Fourier transform infrared spectrometry(FT-IR),X-ray diffraction(XRD)and X-ray photoecectron spectroscopy(XPS)to characterize the catalyst.The effects of the photocatalytic conditions on dark fermentative hydrogen production from pretreated straw were investigated.Response surface optimization test results showed that the optimal catalytic conditions were biochar doping ratio of 10%,catalyst concentration of 1.3 g/L and catalytic pH 6,the maximum cumulative hydrogen production of straw reached 52.9 mL/g,which was 16.6%higher than that of the control.SEM,FT-IR,and XRD analysis showed that the photocatalysis could damage the structure of straw,which was conducive to the subsequent fermentation hydrogen production.

关 键 词：光催化 秸秆 响应面法 发酵产氢 复合催化剂 

分 类 号：TQ116.2[化学工程—无机化工] TQ920.1[轻工技术与工程—发酵工程] TQ426